The number of words in a book can vary widely depending on the type, genre, and target audience of the book. Here's a general overview:

Typical Word Counts by Book Type

• Novels:
  • Short novels or novellas: 20,000 to 50,000 words
  • Average novels: 70,000 to 100,000 words
  • Longer novels (epics, fantasy, historical fiction): 120,000 to 200,000+ words
• Non-fiction books:
  • Usually range from 50,000 to 100,000 words, depending on the subject and depth
• Children’s books:
  • Picture books: 500 to 1,000 words
  • Early readers: 1,000 to 5,000 words
  • Middle-grade books: 20,000 to 50,000 words
• Young adult (YA) novels:
  • Typically 50,000 to 80,000 words

Examples

• The Great Gatsby by F. Scott Fitzgerald: ~47,000 words
• Harry Potter and the Sorcerer’s Stone by J.K. Rowling: ~77,000 words
• War and Peace by Leo Tolstoy: ~587,000 words

Summary

If you want a rough estimate, most standard novels are between 70,000 and 100,000 words. However, the word count depends heavily on the genre and intended readership. If you have a specific book or genre in mind, I can provide a more tailored estimate!